I haven't seen the movie in quite awhile, but I'm familiar with the books. This is a good movie to see if you don't plan on reading the books, but if you've read the books, you'll probably get upset with the little details. They changed characters like Lars and Boris, who were funny enough already, they removed characters like Tina. The characters Lilly and Michael seem to be more toned down in the movie than in the books. But 'toned down' would be an understatement for Grandmere. Grandmere is totally mean, and was even described as 'scary' in the books. But she's less so in the movie. They also cut a funny side plot from the book about Mia's mom and Mia's algebra teacher being in a relationship. They even killed off Mia's dad. The movie isn't bad at all, don't get me wrong, but you should definitely read the books first if you can.